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July 2001

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HIGH SPEED :

s

5V TOLERANT INPUTS

s

INPUT VOLTAGE LEVEL :

s

LOW POWER DISSIPATION:

s

LOW NOISE:

s

SYMMETRICAL OUTPUT IMPEDANCE:

s

BALANCED PROPAGATION DELAYS:

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OPERATING VOLTAGE RANGE:

s

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 157

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IMPROVED LATCH-UP IMMUNITY

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POWER DOWN PROTECTION ON INPUTS

DESCRIPTION

The 74LVX157 is a low voltage CMOS QUAD 2

CHANNEL

MULTIPLEXER

fabricated

with

sub-micron silicon gate and double-layer metal

power, battery operated and low noise 3.3V

applications.

It consists of four 2-input digital multiplexers with

common select and strobe inputs. When STROBE

input is held high, selection of data is inhibited and

all the outputs become

low. The

SELECT

decoding determines whether the A or B inputs

get routed to their corresponding Y outputs.

Power down protection is provided on all inputs

and 0 to 7V can be accepted on inputs with no

regard to the supply voltage.

This device can be used to interface 5V to 3V

system. It combines high speed performance with

the true CMOS low power consumption.

All

inputs

and

outputs

are

equipped

with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

74LVX157

LOW VOLTAGE QUAD 2 CHANNEL MULTIPLEXER

WITH 5V TOLERANT INPUTS

PIN CONNECTION AND IEC LOGIC SYMBOLS

ORDER CODES

PACKAGE

TUBE

T & R

SOP

74LVX157M

74LVX157MTR

TSSOP

74LVX157TTR

TSSOP

SOP